The 20-year-old member of The Jonas Brothers, who has mostly been known for his amazing boy band-ready hair, proudly displayed his washboard abs by holding his right arm up behind his head and wearing low-slung Nike gym pants. (Someone get this guy pants that fit and some modesty!)

Staying out of the spotlight is not a concept the former "Smash" actor understands despite his protests that he doesn't usually take selfies.

Jonas captioned the pic "I never do this but... Healthy living and fitness update. Post workout picture. #diabeticinshape #2.0"